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9925 (1981 EU24)
Classification: Main-belt Asteroid          SPK-ID: 2009925
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09729645255434786 5.8052e-08  
a 2.80493055146983 3.0263e-08 AU
q 2.532020759150505 1.6277e-07 AU
i 3.224687863690404 6.6763e-06 deg
node 329.2234055582918 0.00010514 deg
peri 64.66794962046012 0.00011081 deg
M 201.7548349147481 3.9801e-05 deg
tp 2457754.739972671763
(2017-Jan-01.23997267)
0.00019614 JED
period 1715.858996485324
4.70
2.7769e-05
7.603e-08
d
yr
n .2098074496432429 3.3955e-09 deg/d
Q 3.077840343789155 3.3208e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      824  
   data-arc span      12177 days (33.34 yr)  
   first obs. used      1981-02-12  
   last obs. used      2014-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56105  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:31:48  

Additional Information
 Earth MOID = 1.53992 AU 
 T_jup = 3.314 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a MPO263438  

9925 (1981 EU24)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 19990202/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EU24 = 1988 VX13 = 1997 RG7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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